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> I wonder what kind of such campaigns are going on today, changing our thoughts without us noticing.

Practically all advertising is designed to change your thoughts/behaviors. The delineation between real content and advertising is thinner than ever and the ads are more targeted than ever.

Looking at global warming we have large scale disinformation campaigns that include politicians, "news" outlets like fox news and astro turfing.

Astro turfing is becoming more and more frequent as the web becomes more centralized.

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